(28.1 MB)
Editor's Overview
Duetto is a voice & video chat application developed by Paolo Benvenuto, packaged as a single Android APK of version 0.9 weighing in at 28.1 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.
Install Checklist
- Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
- File size is a light 28.1 MB, so it installs quickly even on modest connections.
- This build is signed by "Paolo Benvenuto" — always verify the developer name matches what's listed on the app's official store page before installing an update.
- After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
- We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.
About this app
Audio and video travel end-to-end encrypted straight between the two phones. The server - yours, or one somebody let you in to - is only there to let you find each other, and cannot read anything. No account, no phone number, no service of anybody's.
- One tap and you are in the channel, and you stay: the app survives the night, the pocket, the change of network.
- Video when you want it, with the quality chosen for both phones.
- The other person can call you back with a sound that gets through even with the ringer down.
- Pairing with an eight-digit code or a QR code held up to the other phone; invitations for whoever is to open connections of their own on your server.
- Silent during a phone call, back when it ends.
- Free software, GPL-3, and a server you run yourself: a small Node.js process and coturn.
You need Android 7 or later, and a server: the README says how to put one up in a quarter of an hour.
Details
| Version | v0.9 |
|---|---|
| Size | 28.1 MB |
| Developer | Paolo Benvenuto |
| Category | Voice & Video Chat |
| Package | com.duetto |
| Android | 4.1+ |
| Last Updated | Oct 29, 2026 |
| Downloads | 7 |
Frequently Asked Questions
Is Duetto free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.
What Android version does Duetto require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.
Is Duetto safe to install?
We link to the exact APK published by Paolo Benvenuto. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.
How do I update Duetto?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).
Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.
How to Download & Install Duetto
- Tap the Download APK button above and save the file to your device.
- Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
- Open the downloaded
com.duetto.apkfile from your Downloads folder. - Tap Install and wait for Android to finish.
- Open «Duetto» by Paolo Benvenuto and grant only the permissions it actually needs.
- Revoke the "unknown sources" permission once you are done installing.
Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.
